Downie, George, author
Churchill Livingstone, 2010
Buku Teks
edited for the IPPF by Ronald L. Kleinman
International planned parenthood federation , 1986
Buku Teks
Buku Teks
Skidmore-Roth, Linda, author
Mosby, Elsevier, 2009
Buku Referensi
Deglin, Judith Hopfer, 1950-, author
FA Davis, 2001
Buku Teks